import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue';
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const routes = [
  {path:'/',redirect:'login'},
  {path:'/login',component:Login},
  {
    path:'/home',
    component:Home,
    redirect:'/welcome',
    children:[
      { path:'/welcome', component:Welcome },
      { path:'/users', component:Users },
      { path:'/rights', component:Rights },
      { path:'/roles', component:Roles },
      { path:'/categories', component:Cate},
      { path:'/params', component:Params},
      { path:'/goods', component:List},
      { path:'/goods/add', component:Add},
      { path:'/orders', component:Order},
      { path:'/reports', component:Report},
    ]
  }
]

const router = new VueRouter({
  routes
})

// 挂载路由导航守卫
router.beforeEach((to,from,next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  // next() 放行  next('/login')强制跳转
  if(to.path === '/login') return next();
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})

export default router
